${\mathit m}_{{{\mathit \pi}^{+}}}–{\mathit m}_{{{\mathit \mu}^{+}}}$

INSPIRE   PDGID:
S008D
Measurements with an error $>$ $0.05$ MeV have been omitted from this Listing.
VALUE (MeV) EVTS DOCUMENT ID TECN CHG  COMMENT
• • We do not use the following data for averages, fits, limits, etc. • •
$33.91157$ $\pm0.00067$ 1
DAUM
1991
SPEC + ${{\mathit \pi}^{+}}$ $\rightarrow$ ${{\mathit \mu}^{+}}{{\mathit \nu}}$
$33.9111$ $\pm0.0011$
ABELA
1984
SPEC See DAUM 1991
$33.925$ $\pm0.025$
BOOTH
1970
CNTR + Magnetic spect.
$33.881$ $\pm0.035$ 145
HYMAN
1967
HEBC + ${{\mathit K}^{-}}{}^{}\mathrm {He}$
1  The DAUM 1991 value assumes that ${\mathit m}_{{{\mathit \nu}_{{{\mu}}}}}$ = 0 and uses our ${\mathit m}_{{{\mathit \mu}}}$ = $105.658389$ $\pm0.000034$ MeV.
References